Swivel socket



Feb. 15, 1927. 1 617,664

M. BLAIR ET AL SWIVEL SOCKET Filed April 22, 1926 A TTORN E Y.

Patented Feb. 15, 1927.

UNITED srarss MAnvIn BLAIR AND CHARLES o. onovn, or ELECTR TEXAS.

SWIVEL socxnr.

Application filed April 22', 1926. serial No. 103,837.

This invention relates to well tools and equipment and it refers more particularly to swivel rope sockets for cable drilling, the

' principal object being to provide a wire line socket in which certain expedients are provided whereby to render possible a more speedy and eflicient coupling and likewise to avoid the necessity of threading the cable accumulations of sand and mud, as well as to provide for the insertion and'removal of the cable without requiring that the swivel socket be removed and replaced at each operation. i

With these and other objects and advantages in view, the invention resides further in the salient features of construction and assembly of parts which will be manifested in the course of the following detail descrip tion and. illustrated in the accompanying drawings, wherein:

Figure 1 represents an elevational view of the improved swivel rope socket.

Figure 2 is a view in vertical cross-section.

Figure 3 represents a perspective view of the locking bar.

Figure 4 is an elevational view of the socket, showing the cable end before insertion, and the locking bar partially inserted, and

Figure 5 isa cross-section on lines 55 of Figure 4.

It is of coursea well known precedent to employ, in cable drillin a connection of similar construction to tiat shown, but in previous structures, it was required to insert the end of the cable into the top of the socket, draw it through the aperture in the side, and apply the plug or rope ends. The present invention proposes to sot the side of the body in such a manner as to permit the plug to be first applied, then inserted into the socket and clamped.

In continuing more in detail, reference is directed to Figure 1, showing the body 1 in vertical elevation which has the usual opening 2 therein. A slot 3 begins at this opening and extends out at the top of the body, and is provided with shoulders 4 intermediate its ends, the purpose of which will be later made clear. This slot likewise has on ent in Figure 4.

Now, referring to Figure 2, a shoulder 6 is shown formed interiorly of the body 1, in the cylindrical cavity 7, for the purpose of retaining the plug or rope end socket 8, on the end of the rope 9. The body 1 is further provided with the'usual wrench engaging square 10, and threaded tool receiving box 11. V

- Afterthe rope end 8 is securely aflixed to the end of the rope 9, it is placed into the opening 2, allowingthe rope to enter the slot 3, to'assume the positionshown in Figure 2. After thisfdone, 'thelocking bar 12, exclusively shown in-Figure 3, is inserted into .the slot 8, whereupon it slides down wardly and its lower end completely covers the opening 2.. It will beobserved in Figures 2 and 4, as well as 5, that flanges 13 are provided on each side of the bar 12, which are adapted to ride inthe grooves 5 of the slots, previously mentioned.

bar 12 is then in a position to permit the latch springs 14 on the bar, as in Figures 8 and 4, to spring outwardly and engage behind the shoulders 4 in the slot 3,v to positively hold the bar against upward move ment.

It is particularly pointed out that no strain whatever is imposed upon the bar 12, all of such strain being entirely restricted to the shoulder 6, as in Figure 2, the bar 12,

L Upon reachlng the lowest point in the slot 3-, the

acting only in the capacity of a retaining element to prevent displacement of the cable, during operation of the tool within the well. An auxiliary locking means in the form of a set screw 15 may be. employed to aid in holding the bar in proper position Within the slot 3, but which is not essentially necessary.

In order to remove the cable 9 for the purpose of repairing or cleaningthe tool, it is required only to compress the springs 14 and pry the bar 12 from its position within the slot and release the plug 8 from the opening 2.

\Vhile the invention has been specifically.

referred to in detail as tostructure and purpose, it should be understood that it is not desired that the invention be restricted to such limitation, and that certainmodifications may be resorted to as practicable,provided such modifications remain within the scope of the appended claims.

We claim: 4 r

1. A swivel rope socket including a body having a longitudinal bore and an aperture exteriorly entering said bore provided with a slot exteiiidi'ng to, the top of said may; shoulders in said bore adjacent the said aperture; means to permit'of the insertion of a cable and'cable end socket into said aperture andslot; and a locking bar having latch springs thereon insertable in said slot whereby said springs will engage shoulders in the side of said slot to hold said bar againsti upwaard .zmovement in said slot.

2. A swivel 'rope :socket including a hodv having a longitudinal'bore and a slotlpartiah ly extending along the said body opening into :said bore and terminating into enlarged opening; means "to permit the insertion of V a cable and cable "socket :into *saidboreg; la

1 shoulder in said bore for holding said ica'ble socket from .upward movements; *an'da locki-rfg means comprising iakba'r slidahle in said sldt having :spring means normally engageable in shoulders-in opposingsides' of said slot when in lockedeposition; c

3. A swivel rope-socket including ahollow body:..havi-ng an opening therein and a slot extending from said opening to the top of said "body ,iprovided with recesses in its sides; means for holding a calole end socket in the hollow portionofsaid body, and a locking "bar slidable "in-said slot having springs on its sides arranged to engage within said recesses when normal elocked :position. .1 j

4. A swivel :rope socket including %a "holopening thereon a means for [looking a cable the hollow of :said body; said means corn prising abar slidahl'e lengthwise in said slot to cover said opening and springs on opposmgsides of said bar disposed so as to be received in the recesses of 'saidslot.

I 6. A device f"the character described comprising va hollow body having "a recessed slot and opening in its side communicating with 'said hollow portion; means to pe rinit of the insertidn of a cable/and cablesocket in said hol low portiong and means for retain "ling isaid cahle EaHQl SOC'lK6t against movement from said hollow 1portion;'ssaid means comprising a :b'a-r slidable lengthwise in said slot having springs on its sides disposed to be received l nfntlglei recessesfof said slot when inlocked position.

In testimony whereof tures.

MARVIN I BLAIR.

CHARLES o. GR V 

